HOW TO DEAL WITH SPLINES
By José Pablo Luna Sánchez. 2006.

"Ok, what is a spline?" you may wonder.
"What is it good for?"

"I made a mistake while drawing a spline..."
"Ooops, I unselected the spline"

Splines are paths or curves composed by linked points that are useful for some specific purposes, like drawing pipelines, or drawing a shape that should be converted to a lathe or extruded shape.

In the case of this tutorial, a rocket is a lathe shape.

Splines in Anim8or look black when unselected and white when selected.
The red point of a spline indicates that you can extend that spline from there.

If you don't have a red point, you can't extend the spline.

To move the points of a spline, you need to press Object/point Edit button and edit the spine in point edit mode, just like when we move points in a mesh.
You only can move points if the spline is selected.
They can be selected just like any other shape in Anim8or.

If you made a mistake while drawing the spline, just finish the spline and later you will make the necessary changes.
If you started your spline in the wrong point and your spline is not a closed path that ends at the same point where it begins, then delete the spline and draw it again.